1.
J Am Soc Mass Spectrom
; 34(11): 2439-2442, 2023 Nov 01.
Artigo
em Inglês
| MEDLINE
| ID: mdl-37843495
RESUMO
Multiple-stage collision-induced dissociation (CID) of a uranyl propiolate cation, [UO2(O2C-C≡CH)]+, can be used to prepare the U-methylidyne species [OâU≡CH]+ [J. Am. Soc. Mass Spectrom. 2019, 30, 796-805]. Here, we report that CID of [OâU≡CH]+ causes elimination of CO to create [UH]+, followed by a loss of H⢠to generate U+. A feasible, multiple-step pathway for the generation of [UH]+ was identified using DFT calculations. These results provide the first demonstration that multiple-stage CID can be used to prepare both U+ and UH+ directly from a UO22+ precursor for the subsequent investigation of ion-molecule reactivity.